HK Army HSTL Skull Protective Goggle For Paintball/Airsoft Enhanced Ventilation Maximize breathability with skull-inspired front and side ventilation. Quick-Change Lens Swapping lenses is simple with the quick-change lens retention system. Open-Cell Interior Foam Detachable upper and lower open-cell interior foam for easy maintenance. ASTM-Certified The HSTL Skull is ASTM-Certified to withstand impact from paintball or airsoft projectiles. Adjustable Chin-Strap Secure your goggle fit with the anti-slip adjustable chin-strap. HD Anti-Fog Lens High-definition, dual-pane thermal lens maximizes visual clarity while preventing fogging. Paintball Goggle Airsoft Mask - HK Army HSTL Skull Bare your teeth with the HSTL Skull Goggle. Composed of a robust blend of thermoplastic, the HSTL Skull Goggle is ASTM-Certified to withstand paintballs or airsoft projectiles. FEATURES Snap in place removable upper and lower goggle comfort foam insertsOptically correct high definition dual-pane thermal lens to prevent any possible foggingQuick-change lens retention systemAdjustable anti-slip goggle head strapAdjustable chin strap with quick release buckleVents spread throughout the goggle to enhance breathability and hearingLightweight designASTM Safety Certified for Paintball and Airsoft